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How does DM3730 support BT656-formated input?

Qing Chang
Intellectual 280 points

Other Parts Discussed in Thread: DM3730

Hi,

ADV7180 has a dedicated HS pin, but the VS and FIELD is multiplexed, and It can only support BT656-format output.

On the other hand, I've checked that the ISP driver of DM3730 captures video data through ccdc(cpi) interface, using 

HS, VS and FIELD signal.

So, how can I make the DM3730 capture the adv7180's output? ARE the above 3 signal inevitable?

  • 0
    TI__Guru 65405 points
    Hi Qing Chang,

    The DM3730 camera ISP supports ITU-R BT656 formatted input but horizontal and vertical synchronization signals are not provided to the interface. Instead, the data stream embeds SAV and EAV synchronization code. You can find more details in the TRM section 6.4.6.1 Camera ISP CCDC and check the configuration of CCDC_CFG and CCDC_REC656IF registers.

    BR
    Tsvetolin Shulev